package ATM;

import java.util.Scanner;

public class ATM{
    public static Users[] setUser(){
        Users[] arrays = new Users[5];
        Users Users1 = new Users("aaaaaa","111111",1000);
        Users Users2 = new Users("bbbbbb","222222",2000);
        Users Users3 = new Users("cccccc","333333",3000);
        Users Users4 = new Users("dddddd","444444",4000);
        Users Users5 = new Users("eeeeee","555555",5000);
        arrays[0] = Users1;
        arrays[1] = Users2;
        arrays[2] = Users3;
        arrays[3] = Users4;
        arrays[4] = Users5;
        return arrays;
    }

    public static void main(String[] args) {
        process();
    }
    static Users[] users = setUser();
    static int index = 0;
    static Scanner sc = new Scanner(System.in);

    //控制整个流程的方法
    public static void process(){
        System.out.println("欢迎使用lovo银行");
        while (true){
            login();
            menu();
        }

    }

    public static void login(){
        for (int i = 0;i < 3;i++ ){
            System.out.println("请输入账号：");
            String account = sc.next();
            System.out.println("请输入密码：");
            String pwd = sc .next();
            for (int j = 0;j< users.length;j++){
                if (users[j].getAccount().equals(account)&&users[j].getPwd().equals(pwd)){
                    System.out.println("登录成功");
                    index = j;
                    return;
                }
            }
            System.out.println("账号或密码错误，请重新输入，还剩"+(2-i)+"次");
        }
        System.out.println("次数已用完，卡已被吞");
        System.exit(0);//系统结束

    }

    public static void menu(){
        while (true){
            System.out.println("请选择：1-查询 2-存款 3-取款 4-转账 5-切换账号 6-退出 7-修改密码");
            int input = sc.nextInt();
            if(input == 1){
                search();
            }else if (input==2){
                save();
            }else if (input==3){
                get();
            }else if (input==4){
                transfer();
            }else if (input==5){
                System.out.println("账号已退出");
                return;
            }else if (input==6){
                System.out.println("谢谢使用");
                System.exit(0);
            }else if (input==7){
                if(changePwd()){
                   System.out.println("已登出");
                    return;
                }
            }
            else {
                System.out.println("选择有误，请重新选择");
            }
        }
    }
    //存款
    public static void save(){
        System.out.println("请输入存入的金额：");
        double money = sc.nextDouble();
        users[index].setBlance(users[index].getBlance() + money);
        System.out.println("存款成功,您的余额为："+users[index].getBlance());
    }
    //取款
    public static void get(){
        System.out.println("请输入取款金额：");
        double money = sc.nextDouble();
        if (money <= users[index].getBlance()){
            users[index].setBlance(users[index].getBlance() - money);
            System.out.println("取款成功，您的余额为："+users[index].getBlance());
        }else{
            System.out.println("您的余额不足");
        }
    }
    //查询
    public static void search(){
        System.out.println("您的余额为："+users[index].getBlance());
    }
    //转账
    public static void transfer(){
        System.out.println("请输入转账金额：");
        double money = sc.nextDouble();
        // 判断余额是否足够
        if(money > users[index].getBlance()){
            System.out.println("余额不足");
            return;
        }
        System.out.println("请输入对方账号：");
        String otherAccount = sc.next();
        // 不能转给自己
        if(otherAccount.equals(users[index].getAccount())){
            System.out.println("不能转给自己");
            return;
        }
        // 循环判断输入的账号是否存在
        for(int i = 0;i < users.length;i++){
            if(users[i].getAccount().equals(otherAccount)){
                // 当前账户的钱扣去
                users[index].setBlance(users[index].getBlance() - money);
                // 把钱加到对方账户上
                users[i].setBlance(users[i].getBlance() + money );
                System.out.println("转账成功");
                return;
            }
        }
        System.out.println("输入的账号不存在");

    }
    //更改账户密码
    public static boolean changePwd(){
        System.out.println("请输入原密码：");
        String oldPwd = sc.next();
        if(!oldPwd.equals(users[index].getPwd())){
            System.out.println("原密码输入错误");
            return false;
        }
        System.out.println("请输入新密码：");
        String newPwd = sc.next();
        if(oldPwd.equals(newPwd)){
            System.out.println("新密码不能和原密码一样");
            return false;
        }
        System.out.println("请再次输入新密码：");
        String confirmPwd = sc.next();
        if(!newPwd.equals(confirmPwd)){
            System.out.println("两次密码不一致");
            return false;
        }
        users[index].setPwd(newPwd);
        System.out.println("密码修改成功");
        return true;
    }
}
